Assessments conducted at earlier phases are specified in previous articles.7, 8 At the 15 - year follow - up assessment, adolescents completed interviews that measured whether they had been adjudicated a person in need of supervision (PINS) resulting from incorrigible
behavior such as recurrent truancy or destroying parents» property; their frequency of running away from home; and the number of times they had been
stopped by the police, arrested, convicted of a crime or of probation violations, and sent to youth correctional facilities.14 They also reported on their disruptive
behavior in school; number of school suspensions; delinquent and aggressive
behavior outside school; experience of sexual intercourse; rates of pregnancy; lifetime number of sexual partners; and frequency of using cigarettes, alcohol, and
illegal drugs during the 6 - month period prior to the 15 - year interview.15